If you do a quick Google search, the keywords 'purple' and 'line' are synonymous with camera CCD problems across all makers' models.
It'll need some proper servicing and don't let the support technician's excuse of you being the first case he/she's ever heard of put you off. It's the same quick excuse (followed by an initial "there's nothing wrong" mis-assessment) I got when I first brought up my high ISO noise banding problem that is afflicting my E-330.
Your example picture's been severely compressed. Maybe you can upload your file to some general file-hosting site like box.net and then send us a link?